FIX CR's   
      
   Suppose we have two channels, a + B, which are neighboring wavelengths in a   
   spectrum. Suppose there is a signal buried down in channel B but not in A.   
   Say the signal is 1/1000 the strength of A-B.   
      
   So we just add the signals in A,B 10,000 times. Then the buried differential   
   signal in B can rise above the concomitant noise in A,B. We see the signal by   
   subtracting the value in A.   
      
   The question is, can this work under some circumstances? Can it work as a blind   
   heuristic where we don't know where a signal is, nor where A,B are? This can be   
   run in  "supervised" pattern recognition mode, where we are looking for   
   correlations to some external thing. It could also be run in "unsupervised"   
   PR mode, where a signal emerges by itself, and you say "this is interesting.   
   It might mean something."   
   >   
   > "If you subtract the killings, DC has one of the lowest crime rates in the   
   >   
   >  country." - Mayor Berry, DC.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)